package com.meitianhui.convenitenbuy.util;

import android.graphics.Bitmap;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.WriterException;
import com.google.zxing.common.BitMatrix;
import com.meitianhui.convenitenbuy.zxing.encoding.EncodingHandler;

/**
 * Created by Administrator on 2017/11/7.
 */

public class ZXingUtils {
    /**
     * 根据所提供的内容生成条形码
     *
     * @param content 用户付款码
     * @param w       图片的宽度
     * @param h       图片的高度
     * @return
     * @throws WriterException
     */
    public static Bitmap createOneDCode(String content, int w, int h) throws WriterException {
        // 生成一维条码,编码时指定大小,不要生成了图片以后再进行缩放,这样会模糊导致识别失败
        BitMatrix matrix = new MultiFormatWriter().encode(content,
                BarcodeFormat.CODE_128, w, h);
        int width = matrix.getWidth();
        int height = matrix.getHeight();
        int[] pixels = new int[width * height];
        for (int y = 0; y < height; y++) {
            for (int x = 0; x < width; x++) {
                if (matrix.get(x, y)) {
                    pixels[y * width + x] = 0xff000000;
                }
            }
        }

        Bitmap bitmap = Bitmap.createBitmap(width, height,
                Bitmap.Config.ARGB_8888);
        // 通过像素数组生成bitmap,具体参考api
        bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
        return bitmap;
    }
    //生成二维码
    public static Bitmap createQRCode(String content,int height) throws WriterException {
       return EncodingHandler.createQRCode(content, PixelUtils.dip2px((float) height));
    }
}
